Disclaimer: I've been car free for the past three years.
I agree that roads are public infrastructure, but car owners are heavily taxed in Europe, especially some parts of Europe.
In Italy, excluding fuel taxes (which cover 70% of the cost of the fuel BTW) every car owner pays a mandatory "car owning tax" for each car they own, that totals around 5-6 billions euros/year. And it's only the main one, there are several others.
I agree that roads are public infrastructure, but car owners are heavily taxed in Europe, especially some parts of Europe.
In Italy, excluding fuel taxes (which cover 70% of the cost of the fuel BTW) every car owner pays a mandatory "car owning tax" for each car they own, that totals around 5-6 billions euros/year. And it's only the main one, there are several others.